of worcester



T. C. RICE.

Making Wrench Heads.

No. 64.364. I v Patented April 30, 1-867.

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T. C. RISE, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO THOMAS H.

DODGE AND T. IV. IVELLINGTON, OF THE SAME PLACE.

Letters Patent No. 64,364, dated April 30, 1867. y

IMPROVED APPARATUS FOR READING WRENGH-BARS.

KNOW ALL MEN BY THESE PRESENTS:

That I, T. 0. RICE, of the city and county of Worcester, and Commonwealth of Massachusetts, have' invented certain new and useful Improvements in Machines for Heading Wrench-Bars; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a top or plan View of the machine.

Figure 2 represents a longitudinal central section on line A 13, fig. 1; and 7 Figures 3, 4, and 5 represent side views of the bar and wrench-head in the various stages of its formation.

In the drawings, A represents the base of the machine, to the top of which frame or way B is fastened. Way B is grooved out in the centre to receive the sliding-table or bed 0, which rests and slides on the bottom of the groove ain way B, while the sides I) Z: of way B keep itfrom lateral play. One end of the table or bed C is cut down, and a rack, D, fastened to the bed or table in such a manner as to mesh into the gear E upon shaft F, which turns in bearings in the standards G G. Two horizontal friction-wheels H H are placed upon verticaljournals I I, which extend up from pillow-blocks made fast to the base of the machine. Journals I I are connected at the top by a strap, J, to keep them from springing outward during the operation of forming the head of the wrench. A vertical friction-roll, K, is also arranged over the centre of the table or bed 0, its journal being supported in hearings in standards resting on the base of the machine, and made fast thereto and also to the sides 6 b of the way B. The base A is recessed out from cl to e, and the bed or table C has two vertical holes,fand y, and one inclined hole It cut through it. These holes are made of the size of the bar Z", figs. 3, 4, and 5, which is the shape of the bar of the wrench.

The operation is as follows: Table or bed C is moved, by means of rack and gear E, or otherwise, to the right, so as to bring holefin the table 0 to the right of the friction-rolls H H, when the bar is, fig. 3, is dropped into holef, so that the partially-formed head m rests upon the top of bed or table C. Power is now applied to shaft F by means of a crank or pulley, and the table moved to the left, thereby forcing the head m of the wrench between the friction-rolls H H, by which operation the wrench-head is reduced to the desired" thickness. The

bar k is new removed from table C, and the table run to the right again, so as to bring hole 3 in the table or bed C, to the right of friction-roll K, when bar is is dropped into hole g, the partially formed head m in this instance resting on the table C, while the sides of the head are supported by the sides 0 o. The sides 0 mare raised a little above the top of table C, so that friction-roll K works below the sides of 0 0, thereby preventing the formation of fins on the head m. Power is now applied, and the bed run to the left again, whereby the head is forced under friction-roll K, by which operation the head is squared and reduced to the desired depth, while the surplus metal is forced or thrown tothe right of the bar 7:, the projection 11 preventing the metal from forcing back, while the sides 0 o retain it of the same thickness it was left by the first operation in passing between rolls H H. This operation leaves the head in the form shown in fig. 4. Bar is is now removed from hole 9, and the table or bed 0 run to the right. again, so as to bring the inclined hole 7; to the right of the friction-roll K, when bar 70, fig. 4, is dropped into the inclined holeh, and the bed or table C run back, carrying head m under the friction-roll K, by which operation the proper inclination is given to the head, as shown at s, fig. 5, while the surplus metal t is forced into the pit u in the bed or table C. The blank shown in fig. 3 represents the bar k and head m as they are left by my rolling machine for which I have applied for Letters Patent. In fig. 5 the bar is represented shanked, as seen at x. This last operation may be performed before the head is formed if preferred.

All of the above heading operations may be performed at one heat; and in lieu of using one machine, different machines may be employed; that is, one machine could be used to reduce the head to the proper thickness, another to reduce it to the proper depth, and still another to give the proper inclination s to the point of the head.

The table or bed 0 is formed with a notch, 2 to retain the back of the head in place while the inclination ,reduce and shape the Wrench-head, substantially in the manner herein specified.

s is being formed. Table 0 may be operated by steam or hydraulic 'pressure applied to a piston attached to the bed, or in any other convenient manner.

Having described my machine for forming the heads to. wrenebbars, what I claim as new and of my invention, and desire to secure by Letters Patent, is I 1. The combination of the sliding-table C, perforated in the manner described, with the horizontal rolls H H for reducing the head of the Wrench to the proper thickness, substantially as set forth. i

2. The combination of the grooved table or bed C, perforated in the manner described, with "the vertical friction-roll K, for reducing the head of the wrench to the proper depth while the sides are prevented from lateral expansion, substantially as set forth.

3. The combination of the friction-roll K with the grooved table or bed C, provided with the inclined hole It for reducing one part only of the head and giving it the proper inclination, substantially as set forth.

4. The combination with the friction-roll K of the grooved table C, when provided with the inclined hole or perforation it, notch z, and pit u for receiving the surplus metal, as set forth.

5. The combination, in the sliding-table C, of the hole g with the sides 0 0 and projection 22, substantially as and for the purposes set forth.

6. The combination of the perforated table 0, for holding the wrench-head in different positions, with the friction-rolls, and the rack and gear or other actuating mechanism, the whole being arranged and operated to '1. 0. RICE.

Witnesses:

Tnos. H. Donen;

D L. MILLER. 

